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Finding the Third Proportional to 359,316 and 782,379

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Solution

The third proportional to 359,316 and 782,379 is: 1,703,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,316 : 782,379 = 782,379 : x
  2. Step 2: Convert to fraction form
    359,316/782,379 = 782,379/x
  3. Step 3: Cross multiply
    359,316x = 782,379 × 782,379
  4. Step 4: Simplify right side
    359,316x = 612,116,899,641
  5. Step 5: Solve for x
    x = 612,116,899,641/359,316
  6. Step 6: Final answer
    x = 1,703,561.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.